<?php

namespace app\admin\controller;

use app\common\controller\Backend;
use fast\Tree;
use think\Db;
use \app\common\model\GoodsCategory as GoodsCategoryModel;

/**
 * 商品分类表
 *
 * @icon fa fa-circle-o
 */
class GoodsCategory extends Backend
{
	
	/**
	 * GoodsCategory模型对象
	 */
	protected $model = null;
	protected $modelValidate = true;
	
	public function _initialize(){
		parent::_initialize();
		$this->model = new GoodsCategoryModel();
		$tree = Tree::instance();
		
		$tree->init(collection($this->model->order('sort desc,id desc')->select())->toArray(), 'parent_id');
		$this->categorylist = $tree->getTreeList($tree->getTreeArray(0), 'name');
		$categorydata = [0 => ['type' => 'all', 'name' => __('None')]];
		foreach ($this->categorylist as $k => $v) {
			$categorydata[$v['id']] = $v;
		}
		
		$list = [
			'statusList' => GoodsCategoryModel::$statusList
		];
		$this->assign($list);
		$this->assignconfig($list);
	}
	
	/**
	 * 默认生成的控制器所继承的父类中有index/add/edit/del/multi五个基础方法、destroy/restore/recyclebin三个回收站方法
	 * 因此在当前控制器中可不用编写增删改查的代码,除非需要自己控制这部分逻辑
	 * 需要将application/admin/library/traits/Backend.php中对应的方法复制到当前控制器,然后进行修改
	 */
	
	/**
	 * 查看
	 */
	public function index() {
		if ($this->request->isAjax()) {
			//如果发送的来源是Selectpage，则转发到Selectpage
			if ($this->request->request('keyField')) {
				return $this->selectpage();
			}
			$search = $this->request->request("search");
			$type = $this->request->request("type");
			
			//构造父类select列表选项数据
			$list = [];
			
			foreach ($this->categorylist as $k => $v) {
				if ($search) {
					if ($v['type'] == $type && stripos($v['name'], $search) !== false || stripos($v['nickname'], $search) !== false) {
						if ($type == "all" || $type == null) {
							$list = $this->categorylist;
						} else {
							$list[] = $v;
						}
					}
				} else {
					if ($type == "all" || $type == null) {
						$list = $this->categorylist;
					} else {
						if ($v['type'] == $type) {
							$list[] = $v;
						}
					}
					
				}
				
			}
			
			$total = count($list);
			$result = array("total" => $total, "rows" => $list);
			
			return json($result);
		}
		return $this->view->fetch();
	}
	
	
	/**
	 * 添加
	 */
	public function add()
	{
		if ($this->request->isPost()) {
			$params = $this->request->post("row/a");
			if ($params) {
				if ($this->dataLimit && $this->dataLimitFieldAutoFill) {
					$params[$this->dataLimitField] = $this->auth->id;
				}
				try {
					//是否采用模型验证
					if ($this->modelValidate) {
						$name = basename(str_replace('\\', '/', get_class($this->model)));
						$validate = is_bool($this->modelValidate) ? ($this->modelSceneValidate ? $name . '.add' : true) : $this->modelValidate;
						$this->model->validate($validate);
					}
					if ($params['parent_id']) {
						$parent = $this->model->find($params['parent_id']);
						$params['level'] = $parent['level'] + 1;
						$params['parent_path'] = $parent['parent_path'] . '_' . $parent['id'];
					} else {
						$params['parent_path'] = 0;
					}
					

					$result = $this->model->allowField(true)->save($params);
					if ($result !== false) {
						$this->success();
					} else {
						$this->error($this->model->getError());
					}
				} catch (\think\exception\PDOException $e) {
					$this->error($e->getMessage());
				}
			}
			$this->error(__('Parameter %s can not be empty', ''));
		}
		return $this->view->fetch('edit', [
			'row' => [],
			'categorys' => $this->categorylist,
		]);
	}
	
	
	/**
	 * 编辑
	 */
	public function edit($ids = null)
	{
		$row = $this->model->get($ids);
		if (!$row) {
			$this->error(__('No Results were found'));
		}
		$adminIds = $this->getDataLimitAdminIds();
		if (is_array($adminIds)) {
			if (!in_array($row[$this->dataLimitField], $adminIds)) {
				$this->error(__('You have no permission'));
			}
		}
		if ($this->request->isPost()) {
			$params = $this->request->post("row/a");
			if ($params) {
				try {
					//是否采用模型验证
					if ($this->modelValidate) {
						$name = basename(str_replace('\\', '/', get_class($this->model)));
						$validate = is_bool($this->modelValidate) ? ($this->modelSceneValidate ? $name . '.edit' : true) : $this->modelValidate;
						$row->validate($validate);
					}
					if ($params['parent_id']) {
						$parent = $this->model->find($params['parent_id']);
						$params['level'] = $parent['level'] + 1;
						$params['parent_path'] = $parent['parent_path'] . '_' . $parent['id'];
					} else {
						$params['parent_path'] = 0;
					}

					
					$result = $row->allowField(true)->save($params);
					if ($result !== false) {
						$this->success();
					} else {
						$this->error($row->getError());
					}
				} catch (\think\exception\PDOException $e) {
					$this->error($e->getMessage());
				}
			}
			$this->error(__('Parameter %s can not be empty', ''));
		}
		$this->view->assign("row", $row);
		return $this->view->fetch('edit', [
			'categorys' => $this->categorylist,
		]);
	}
	
	/**
	 * 删除
	 */
	public function del($ids = "")
	{
		if ($ids) {
			$pk = $this->model->getPk();
			$adminIds = $this->getDataLimitAdminIds();
			if (is_array($adminIds)) {
				$count = $this->model->where($this->dataLimitField, 'in', $adminIds);
			}
			$list = $this->model->where($pk, 'in', $ids)->select();
			$count = 0;
			foreach ($list as $k => $v) {
				$son = $this->model->where(['parent_id' => $v['id']])->find();
				if ($son) {
					$this->error('不能删除有下级分类的分类');
				}
				
				$goods = Db::name('goods')->where(['category_id' => $v['id']])->find();
				if ($goods) {
					$this->error('该分类存在商品，不可删除');
				}
				$count += $v->delete();
			}
			if ($count) {
				$this->success();
			} else {
				$this->error(__('No rows were deleted'));
			}
		}
		$this->error(__('Parameter %s can not be empty', 'ids'));
	}
	
}
